| Rockville to Dormagen | 3,951.55 mi (6,359.41 km) |
| Rockville to Dornstadt | 4,154.64 mi (6,686.25 km) |
| Rockville to Dorsten | 3,942.17 mi (6,344.31 km) |
| Rockville to Dortmund | 3,965.90 mi (6,382.49 km) |
| Rockville to Dorverden | 3,997.54 mi (6,433.42 km) |
| Rockville to Dossenheim | 4,073.20 mi (6,555.19 km) |
| Rockville to Dreieich | 4,058.11 mi (6,530.90 km) |
| Rockville to Drensteinfurt | 3,968.97 mi (6,387.44 km) |
| Rockville to Dresden | 4,224.35 mi (6,798.44 km) |
| Rockville to Drochtersen | 3,979.70 mi (6,404.70 km) |
| Rockville to Drolshagen | 3,991.19 mi (6,423.20 km) |
| Rockville to Duderstadt | 4,075.44 mi (6,558.78 km) |
| Rockville to Duisburg | 3,940.29 mi (6,341.29 km) |
| Rockville to Dulmen | 3,949.90 mi (6,356.74 km) |
| Rockville to Duren | 3,946.41 mi (6,351.14 km) |
